The ICS-41352 is a multi-mode, low noise digital MEMS microphone in a small package. The ICS-41352 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order Σ-Δ modulator. The digital interface allows the pulse density modulated (PDM) output of two microphones to be time multiplexed on a single data line using a single clock.

The ICS-41352 has multiple modes of operation: Ultrasonic, Low-Power (AlwaysOn), Standard and Sleep. The ICS-41352 has high SNR in all operational modes. It has 120 dB SPL AOP in all performance modes.

In Ultrasonic Mode, the ICS-41352 has an extended ultrasonic response up to 85 kHz with high SNR. The ICS-41352 is available in a small 3.5 × 2.65 × 0.98 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation.

Product Details

Part # Market Status Output Port Location SNR AOP Sensitivity Package Size
UNITS: dBA dB SPL dbfs (mm)
ICS-41352
ICS-41352
Production PDM Bottom 64 120 -26 3.5 x 2.65 x 0.98

Features

  • 3.5 × 2.65 × 0.98 mm surface-mount package
  • Low power: 550 μA in Ultrasonic Mode, 185 μA in Low-Power Mode
  • Extended ultrasonic frequency response to 85 kHz
  • Sleep Mode: 12 μA
  • High power supply rejection (PSR): −97 dB FS
  • Fourth-order Σ-Δ modulator
  • Digital pulse density modulation (PDM) output
  • Compatible with Sn/Pb and Pb-free solder processes
  • RoHS/WEEE compliant
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